CN218684249U

CN218684249U - Mounting structure and cleaning machine of open water pump spray arm

Info

Publication number: CN218684249U
Application number: CN202221537309.0U
Authority: CN
Inventors: 史伟杰; 刁硕; 陆泽杰; 郑峰
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2023-03-24
Anticipated expiration: 2032-06-17

Abstract

The utility model relates to an open water pump spray arm's mounting structure and cleaning machine, mounting structure include water conservancy diversion seat, spray arm and impeller, and the water conservancy diversion seat has vertical arrangement's water conservancy diversion cover, and the spray arm can restrict with rotating and open on water conservancy diversion seat top and diapire and have the water inlet of corresponding port on the water conservancy diversion cover, and impeller upper portion is for passing centrifugal impeller, the lower part that the water inlet is arranged in the spray arm and be arranged in the axial compressor impeller of water conservancy diversion cover with rotating, be provided with along water inlet downwardly extending's drainage cover on the diapire of spray arm, this drainage cover can plant with rotating in the upper portion of water conservancy diversion cover, the lower part that the drainage cover lower extreme corresponds axial compressor impeller is arranged. In the water drawing process, the centrifugal impeller is a high-pressure area, the axial flow impeller is a low-pressure area, and particularly the lower part of the axial flow impeller is a low-pressure area, so that the water flow can be prevented from leaking through the assembly gap due to high water pressure, the problem of air suction through the assembly gap is also avoided, the energy efficiency of the cleaning machine is improved, and the stable operation of a water flow system is ensured.

Description

Mounting structure and cleaning machine of open water pump spray arm

Technical Field

The utility model relates to a dish washer technical field specifically indicates an open water pump spray arm's mounting structure and cleaning machine.

Background

In dishwashers employing open flow systems, the spray arm is typically snap-fitted to the deflector base and secured to the bottom of the sink.

For example, chinese patent application No. CN202011063575.X (publication No. CN 112244711A) discloses a structure, which includes a tank, a spray arm, a water drawing impeller and a motor, wherein the spray arm is disposed in the tank, a water inlet is formed in a bottom wall of the spray arm, a water spraying hole is formed in a top wall of the spray arm, the water drawing impeller is rotatably disposed in the tank and used for pumping water from a bottom of the tank into the spray arm, the motor is disposed at a bottom of the tank and used for driving the water drawing impeller to rotate, a flow guiding seat is disposed on the bottom wall of the tank, the spray arm is rotatably supported at an upper end of the flow guiding seat, a flow guiding sleeve extending downward from an edge of the water inlet of the spray arm is disposed in the flow guiding seat, a lower portion of the water drawing impeller is disposed in the flow guiding sleeve, and an upper portion of the water drawing impeller penetrates through the water inlet and is disposed in the spray arm.

In the open type water flow system of the dish washing machine, the spray arm is generally rotatably connected to the top of the flow guide seat through the clamping ring at the water inlet at the bottom, and because the water inlet of the spray arm needs to be in rotating fit with the top of the flow guide seat, a gap exists at the matching position, and the inner side area of the water inlet of the spray arm can generate positive pressure in the water drawing process, water drainage easily occurs at the matching gap between the spray arm and the top of the flow guide seat, so that the energy efficiency and the water efficiency of the dish washing machine are influenced. In addition, in the complex cleaning environment (various pollutants) of the dish washing machine, the center of the impeller is a negative pressure environment, and external air easily enters a flow channel of the spray arm through a gap, so that the power of the motor is unstable, the efficiency of the water pump is low, and even a water flow system is in failure.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the first technical problem that will solve is to prior art's current situation, thereby provides one kind and can effectively avoid sluicing and the problem of breathing in improves the cleaning machine efficiency, ensures the open water pump spray arm's of rivers system steady operation mounting structure.

The utility model discloses the second technical problem that will solve is to prior art's current situation, provides an use mounting structure's that has above-mentioned open water pump spray arm cleaning machine.

The utility model provides a technical scheme that at least one above-mentioned technical problem adopted does:

the utility model provides an open water pump spray arm's mounting structure, includes water conservancy diversion seat, spray arm and impeller, the water conservancy diversion seat has vertical layout's water conservancy diversion cover, the spray arm can retrain with rotating to open on water conservancy diversion seat top and diapire has the water inlet of corresponding water conservancy diversion upper port, impeller upper portion is for passing the centrifugal impeller that the water inlet is arranged in the spray arm, the axial impeller of lower part for being arranged in the water conservancy diversion cover with rotating, be provided with on the diapire of spray arm along water inlet downwardly extending's drainage cover, this drainage cover can plant with rotating in the upper portion of water conservancy diversion cover, drainage cover lower extreme corresponds the lower part of axial impeller and arranges.

Preferably, the diameter of the upper part of the flow guide sleeve is larger than that of the lower part of the flow guide sleeve, a step positioned in the flow guide sleeve is formed at the joint of the upper part and the lower part of the flow guide sleeve, and the flow guide sleeve is accommodated on the step. By adopting the structure, the inner peripheral wall of the lower part of the diversion sleeve is approximately flush with the inner peripheral wall of the diversion sleeve in the assembled state, so that water drawing is smooth, and energy loss is reduced.

Preferably, in an assembled state, a first gap is formed between the lower end of the drainage sleeve and the step, and the first gap is arranged corresponding to the lower part of the axial flow impeller. In the process of drawing water, the periphery of the centrifugal impeller is a high-pressure area, the axial-flow impeller, particularly the lower part of the axial-flow impeller, is a low-pressure area, and by adopting the structure, the first gap is positioned in the low-pressure area at the lower part of the axial-flow impeller, so that the problem of water drainage caused by the fact that water is extruded to the first gap is avoided.

More preferably, the height ratio of the portion of the axial-flow impeller located above the first gap to the portion located below the first gap is 1.5.

Preferably, a water suction port is formed in the side wall of the lower portion of the flow guide sleeve, and a baffle plate which extends outwards and downwards along the water suction port and reduces the water suction level is arranged on the outer peripheral wall of the flow guide seat. The structure can reduce the water absorption level of the flow guide seat, and separates foams and the like on the water absorption port to prevent the foams from being absorbed into the spray arm, thereby keeping higher spraying lift and cleaning effect.

Preferably, the impeller includes a shaft at a central portion and blades spaced apart from each other on an outer circumferential surface of the shaft, the impeller includes centrifugal blades at an upper portion thereof and axial blades at a lower portion thereof, and a diameter of the centrifugal blades is equal to a diameter of the axial blades. The centrifugal impeller and the axial flow impeller of the present embodiment are integrally formed. By adopting the impeller with the equal-diameter structure, the matching clearance between the edge of the blade and the flow guide sleeve and between the edge of the blade and the flow guide sleeve is kept consistent, so that the effective water drawing clearance is provided conveniently, and the water drawing effect is improved.

More preferably, a second gap for drawing water is formed between the outer edge of the axial flow blade and the inner edge of the flow guide sleeve, and the width of the second gap is 0.5-2 mm.

Still further, the width of the second gap is 1mm.

The utility model discloses still including being used for can retraining the snap ring at water conservancy diversion seat top with the spray arm with rotating, the periphery at water conservancy diversion seat top is put to the snap ring cover, be provided with on the diapire of spray arm and pass the snap ring internal orifice and with the marginal looks joint spacing protruding card of this internal orifice. The bottom wall epirelief of spray arm is equipped with the mount table that radially outwards extends from the water inlet edge, the drainage cover is located under this mount table, protruding card is located on the periphery wall of mount table. The interior perisporium of snap ring is provided with the draw-in groove, and is corresponding, the top of water conservancy diversion seat is provided with the fixture block that can cooperate the joint with this draw-in groove. The structure is convenient for the spray arm to rotate and be detachably constrained at the top of the flow guide seat.

A cleaning machine comprises a box body and an open type water pump, wherein a concave water return area is arranged at the bottom of the box body, the open type water pump is used for pumping the water return area onto the water return area, the cleaning machine also comprises an installation structure of a spray arm of the open type water pump, the bottom of a flow guide seat is supported at the bottom of the water return area, the spray arm is positioned above the water return area, and a water spray hole is formed in the top wall of the spray arm.

Compared with the prior art, the utility model has the advantages of: the utility model discloses take shape out along water inlet downwardly extending's drainage cover in the bottom of spray arm, this drainage cover is inserted with the water conservancy diversion cover of water conservancy diversion seat and is joined in marriage after, move down the fit-up gap to the lower part that corresponds axial impeller and arrange, owing to drawing the water in-process, centrifugal impeller department is the high pressure district, axial impeller especially axial impeller lower part department is the low-pressure area, thereby can avoid high water pressure to make rivers leak through the fit-up gap, simultaneously because the fit-up gap is located under the water level, also avoided through the problem of fit-up gap inspiratory gas, and then improved the cleaning machine efficiency, ensure the stable operation of water flow system.

Drawings

Fig. 1 is a schematic structural view of an installation structure in an embodiment of the present invention;

fig. 2 is a cross-sectional view of a mounting structure (including an open water pump) in an embodiment of the invention;

fig. 3 is a schematic structural view of a spray arm in an embodiment of the present invention;

fig. 4 is a schematic structural view of a snap ring in an embodiment of the present invention;

fig. 5 is a schematic structural view of a diversion seat in an embodiment of the present invention;

fig. 6 is a schematic structural view of an impeller according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a cleaning machine according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 7, the installation structure of the spray arm of the open-type water pump of this embodiment includes a guide base 1, a spray arm 2 and an impeller 3, the guide base 1 has a guide sleeve 11 vertically arranged, the spray arm 2 is rotatably constrained at the top of the guide base 1, and a water inlet 21 corresponding to an upper port of the guide sleeve 11 is formed in a bottom wall of the guide base, an upper portion of the impeller 3 is a centrifugal impeller rotatably passing through the water inlet 21 and located in the spray arm 2, a lower portion of the impeller is an axial-flow impeller located in the guide sleeve 11, a drainage sleeve 22 extending downward along the water inlet 21 is provided on the bottom wall of the spray arm 2, the drainage sleeve 22 is rotatably inserted into an upper portion 101 of the guide sleeve 11, and a lower end of the drainage sleeve 22 is arranged corresponding to a lower portion of the axial-flow impeller.

Specifically, the diameter of the upper part 101 of the flow guide sleeve 11 is greater than that of the lower part 102, a step 103 located in the flow guide sleeve 11 is formed at the joint of the upper part 101 and the lower part 102 of the flow guide sleeve 11, and the flow guide sleeve 22 is accommodated on the step 103. By adopting the structure, in the assembled state, the inner peripheral wall of the lower part of the flow guide sleeve 11 is approximately flush with the inner peripheral wall of the flow guide sleeve 22, so that water drawing is smooth, and the energy loss is reduced.

In the assembled state, a first gap 100 is formed between the lower end of the flow guide sleeve 22 and the step 103, and the first gap 100 is arranged corresponding to the lower part of the axial flow impeller. In the process of drawing water, the periphery of the centrifugal impeller is a high-pressure area, the axial-flow impeller, particularly the lower part of the axial-flow impeller, is a low-pressure area, and by adopting the structure, the first gap is positioned in the low-pressure area at the lower part of the axial-flow impeller, so that the problem of water drainage caused by the fact that water is extruded to the first gap is avoided.

The height ratio of the part of the axial-flow impeller above the first gap 100 to the part of the axial-flow impeller below the first gap 100 is 1.5.

The side wall of the lower part 102 of the guide sleeve 11 is provided with a water suction port 12, and the outer peripheral wall of the guide seat 1 is provided with a baffle 13 which extends outwards and downwards along the water suction port 12 so as to reduce the water suction level. The structure can reduce the water absorption level of the guide seat 1, and separates foam and the like on the water absorption port 12 to prevent the bubbles from being absorbed into the spray arm 2, thereby keeping higher spraying lift and cleaning effect.

The impeller 3 of the present embodiment includes a shaft 31 located at a central portion and blades 32 arranged at intervals on an outer peripheral surface of the shaft 31, the impeller 3 includes centrifugal blades 321 at an upper portion and axial blades 322 at a lower portion, and a diameter of the centrifugal blades 321 is equal to a diameter of the axial blades 322. The centrifugal impeller and the axial flow impeller of the present embodiment are integrally formed. By adopting the impeller with the equal-diameter structure, the matching clearance between the edge of the blade and the drainage sleeve 22 and the flow guide sleeve 11 is kept consistent, so that the effective water drawing clearance is conveniently provided, and the water drawing effect is improved.

In the embodiment, a second gap 200 for drawing water is formed between the outer edge of the axial flow blade 322 and the inner edge of the drainage sleeve 22, and the width of the second gap 200 is 0.5-2 mm. The width of the second gap 200 is preferably controlled to be 1mm.

The embodiment also comprises a clamping ring 4 which is used for restricting the spray arm 2 at the top of the diversion seat 1 in a rotatable manner, the clamping ring 4 is sleeved on the periphery of the top of the diversion seat 1, and a convex card 23 which can penetrate through an inner opening 41 of the clamping ring 4 and is clamped and limited with the edge of the inner opening 41 is arranged on the bottom wall of the spray arm 2. The bottom wall of the spray arm 2 is convexly provided with an assembly platform 24 which extends outwards along the radial direction from the edge of the water inlet 21, the drainage sleeve 22 is positioned below the assembly platform 24, and the convex clamp 23 is arranged on the outer peripheral wall of the assembly platform 24. The inner peripheral wall of the snap ring 4 is provided with a clamping groove 42, and correspondingly, the top of the guide base 1 is provided with a clamping block 14 which can be matched and clamped with the clamping groove 42. Above-mentioned structure is convenient for can rotate and detachably retrain spray arm 2 at the top of water conservancy diversion seat 1, and specific cooperation mode is conventional structure, does not describe here any more.

The cleaning machine of this embodiment includes box 5 and open water pump A, and box 5 bottom is provided with recessed return water area 51, and open water pump A is used for on return water area 51 water pump return water area 51 still includes the mounting structure of above-mentioned open water pump spray arm, and the bottom of water conservancy diversion seat 1 supports in the bottom of return water area 51, and spray arm 2 is located return water area 51 and opens on the roof has the hole for water spraying 25.

In the embodiment, the drainage sleeve 22 extending downwards along the water inlet 21 is formed at the bottom of the spray arm 2, after the drainage sleeve 22 is inserted into and matched with the flow guide sleeve 11 of the flow guide seat 1, the assembly gap is moved downwards to be arranged at the lower part of the corresponding axial-flow impeller, and in the water drawing process, the centrifugal impeller is a high-pressure region, and the axial-flow impeller, particularly the lower part of the axial-flow impeller, is a low-pressure region, so that water can be prevented from leaking out through the assembly gap due to high water pressure, and meanwhile, the problem of air suction through the assembly gap is avoided because the assembly gap is positioned below the water level, the energy efficiency of the cleaning machine is improved, and the stable operation of a water flow system is ensured.

Terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", and the like, are used in the specification and claims of the present invention to describe various example structural parts and elements of the present invention, but these terms are used herein only for convenience of description and are determined based on example orientations shown in the drawings. Because the disclosed embodiments may be arranged in different orientations, these directional terms are for illustrative purposes only and should not be construed as limiting, and for example, "upper" and "lower" are not necessarily limited to orientations opposite or consistent with the direction of gravity.

Claims

1. The utility model provides an open water pump spray arm's mounting structure, includes water conservancy diversion seat (1), spray arm (2) and impeller (3), water conservancy diversion seat (1) has vertical arrangement's water conservancy diversion cover (11), spray arm (2) can restrict with rotating on water conservancy diversion seat (1) top and diapire and open water inlet (21) that have corresponding water conservancy diversion cover (11) to go up the port, impeller upper portion is for passing centrifugal impeller, the lower part that water inlet (21) are arranged in spray arm (2) with rotating and be arranged in the axial compressor impeller of water conservancy diversion cover (11), its characterized in that: a drainage sleeve (22) extending downwards along the water inlet (21) is arranged on the bottom wall of the spraying arm (2), the drainage sleeve (22) can be rotatably inserted into the upper part of the guide sleeve (11), and the lower end of the drainage sleeve (22) is arranged corresponding to the lower part of the axial flow impeller.

2. The mounting structure of an open water pump spray arm of claim 1, wherein: the diameter of the upper part of the guide sleeve (11) is larger than that of the lower part of the guide sleeve, a step (103) located in the guide sleeve (11) is formed at the joint of the upper part and the lower part of the guide sleeve (11), and the guide sleeve (22) is accommodated on the step (103).

3. The mounting structure of an open water pump spray arm according to claim 2, wherein: in the assembled state, a first gap (100) is formed between the lower end of the drainage sleeve (22) and the step (103), and the first gap (100) is arranged corresponding to the lower part of the axial flow impeller.

4. The mounting structure of an open pump spray arm of claim 3, wherein: the height ratio of the portion of the axial-flow impeller located above the first gap (100) to the portion located below the first gap (100) is 1.5.

5. The mounting structure of an open pump spray arm of claim 2, wherein: the side wall of the lower part of the flow guide sleeve (11) is provided with a water suction port (12), and the peripheral wall of the flow guide seat (1) is provided with a baffle (13) which extends outwards and downwards along the water suction port (12) so as to reduce the water suction level.

6. The mounting structure of the open water pump spray arm according to any one of claims 1 to 4, wherein: the impeller (3) comprises a shaft (31) positioned at the central part and blades (32) arranged on the outer peripheral surface of the shaft (31) at intervals, the upper part of the impeller is provided with centrifugal blades (321), the lower part of the impeller is provided with axial flow blades (322), and the diameter of the centrifugal blades (321) is equal to that of the axial flow blades (322).

7. The mounting structure of an open pump spray arm of claim 6, wherein: a second gap (200) for drawing water is formed between the outer edge of the axial flow blade and the inner edge of the drainage sleeve (22), and the width of the second gap is 0.5-2 mm.

8. The mounting structure of an open pump spray arm of claim 7, wherein: the width of the second gap (200) is 1mm.

9. The mounting structure of the open water pump spray arm according to any one of claims 1 to 4, wherein: still including being used for can restrict snap ring (4) at water conservancy diversion seat (1) top with spray arm (2) rotatoryly, snap ring (4) cover is put in the periphery at water conservancy diversion seat (1) top, be provided with on the diapire of spray arm (2) and pass snap ring inner opening (41) and with the marginal looks joint spacing protruding card (23) of this inner opening.

10. The mounting structure of an open pump spray arm of claim 9, wherein: the bottom wall of the spray arm (2) is convexly provided with an assembly table (24) extending outwards from the edge of the water inlet (21) along the radial direction, the drainage sleeve (22) is positioned below the assembly table (24), and the convex clamp (23) is arranged on the outer peripheral wall of the assembly table (24).

11. The mounting structure of an open pump spray arm of claim 9, wherein: be provided with draw-in groove (42) on the internal perisporium of snap ring (4), it is corresponding, the top of water conservancy diversion seat (1) is provided with fixture block (14) that can cooperate the joint with this draw-in groove (42).

12. The utility model provides a cleaning machine, includes box (5) and open water pump (A), box (5) bottom is provided with recessed return water area (51), open water pump is used for with the water pump of return water area (51) to on return water area (51), its characterized in that: the mounting structure of the open water pump spray arm of any one of claims 1 to 11 is further included, the bottom of the diversion seat (1) is supported at the bottom of the water return area (51), the spray arm (2) is positioned above the water return area (51), and the top wall of the spray arm is provided with a water spraying hole (25).